1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.kernel.cluster.messaging;
24  
25  import com.liferay.portal.kernel.cluster.Address;
26  import com.liferay.portal.kernel.cluster.ClusterLinkUtil;
27  import com.liferay.portal.kernel.cluster.Priority;
28  import com.liferay.portal.kernel.log.Log;
29  import com.liferay.portal.kernel.log.LogFactoryUtil;
30  import com.liferay.portal.kernel.messaging.Message;
31  import com.liferay.portal.kernel.messaging.MessageListener;
32  
33  /**
34   * <a href="ClusterBridgeMessageListener.java.html"><b><i>View Source</i></b>
35   * </a>
36   *
37   * @author Shuyang Zhou
38   */
39  public class ClusterBridgeMessageListener implements MessageListener {
40  
41      public void receive(Message message) {
42  
43          // Prevent circular message sending
44  
45          if (ClusterLinkUtil.isForwardMessage(message)) {
46              return;
47          }
48  
49          Address address = ClusterLinkUtil.getAddress(message);
50  
51          if (address == null) {
52              if (_log.isInfoEnabled()) {
53                  _log.info("Bridging cluster link multicast message " + message);
54              }
55  
56              ClusterLinkUtil.sendMulticastMessage(message, _priority);
57          }
58          else {
59              if (_log.isInfoEnabled()) {
60                  _log.info(
61                      "Bridging cluster link unicast message " + message +
62                          " to " + address);
63              }
64  
65              ClusterLinkUtil.sendUnicastMessage(address, message, _priority);
66          }
67      }
68  
69      public void setPriority(Priority priority) {
70          _priority = priority;
71      }
72  
73      private static Log _log =
74          LogFactoryUtil.getLog(ClusterBridgeMessageListener.class);
75  
76      private Priority _priority;
77  
78  }